Time-lock



0. B. PILLARD. Time-Lock.

No. 225,862. Patented Mar. 23,1880.

N-PEIERS, PHOTO-UTHOGRAPHER, WASHINGTON. D C

IINITED STATES PATENT OFFICE.

OLIVER E. PILLARD, OF NEW BRITAIN, CONNECTICUT.

TIME-LOCK.

SPECIFICATION forming part of Letters Patent No. 225,862, dated March 23, 1880.

Application filed April 1, 1879.

To all whom it may concern:

Beit known that I, OLIVER E. PILLARD,

of New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Time-Locks, of which the following is a specification.

My present improvements are applicable to the time-lock embraced in United States Letters Patent No. 166,632, granted to me August 10, 1875, although they are not confined to application thereto. In such time-lock is a block or dog suspended by a device which at a certain time is retracted to permit the descent of said block or (log onto a support, whereby it is sustained in position to secure the bolt-work until the time when it is desired to release the bolt-work, this support being retracted at the time last named, to permit of the farther descent of the block or dog into a position to disengage it from and release the bolt-work.

The principal object of my present improvements is to preclude the running down of the time mechanism in atime look without its causing the block or dog to perform its functions.

To this end one of my improvements consists in the combination, with a time-lock, of means for precluding it from being locked whenever the time mechanism is so much run down or expended as to be unable to run long enough to fulfill its functions. Other improvements consist in details and in combinations of parts hereinafter described and claimed.

In the accompanying drawings, Figure l is a front View of a time-lock embodying my improvements with the main port-ion of the faceplate of its case removed. Fig. 2 is an inverted plan of the time mechanism and its appurtenances, certain parts being omitted the better to illustrate my present improvements. Fig. 3 is a back view of certain gearing employed in transmitting motion to means controlling the device whereby the block 01 dog is precluded from be rn'g adjusted into a position for fulfilling its functions; and Fig. 4 is an end View of the lower portion of such block or dog and of a bar operating in conjunction therewith.

Similar letters of reference designate corresponding parts in all the figures.

In this example of my invention the lock is adapted for use with bolt-work consisting of parallel bolts arranged one on each side of the lock, and connected by a slider-bar extending from one to the other, and carrying an arm which, except when precluded by the block or dog, may enter an opening, 0, in the case C of the lock, and admit of the retraction of the bolt-work by means of an ordinary knob or spindle or otherwise, so as to allow of the opening of the door with which it is combined.

A A designate what may be termed the time-measuring mechanism, consisting of two clocks or mechanical time-pieces combined so that either may run independently of the other, and serving to control the operation of a block or dog, 13, whereby the entrance into the case of the arm carried by the slider-bar of the bolt-work is controlled. As represented, this block or dog B consists of a slide provided with a tongue, at, fitted in a groove, b, in one end of the case C of the time-lock, so that the slide is free to move up or down, it being provided with a hand-piece, 0, whereby it may be raised into position to perform its functions. When raised into this position it comes in contact with a rod or bar, D, combined with the mechanical time-pieces A A, and, acting against an incline on the under side of it, pushes it aside, and on the latter resuming its normal position through the agency of a spring, (1, (shown as of spiral form,) applied to it, is supported by its projecting under an extension, c. The rod D is provided with projectionsf, preferably two in number, one for each of the mechanical time pieces A A,

against which impinge levers E E, pivoted to one of the plates of the said time-pieces, so that when either is oscillated it will move the rod D inward, so as to withdraw its support from the block or dog B and permit the latter to drop downward.

On the shafts of the pointers or indices F F of the dials G G, comprised in the time-pieces A A, are toes or wipers H H, one on each, which, at a certain time in the revolution of the said shafts, come in contact with the levers E E, to which they are respectively adjacent.

and by oscillating them draw the rod D inward.

Preferably, either of these toes or wipers H and allow the latter to drop past it.

or H may accomplish this independently of the other.

When the block or dog drops, its lower end comes in contact with a bar, I, and is thereby supported in such position that its solid or imperforate lower portion obtrudes itself over the opening 0 in the case of the lock, precluding the entrance of the arm carried by the slider-bar of the bolt-work and hence locking and securing the bolt-work against retraction during the time when it is desired to keep the door locked.

To prevent the shifting of the block or dog through the tilting of the safe to permit of the retraction of the bolt-work, the said block' or dog may be provided with a hook, Z, having an inclined nose or end, which, on the descent of the block or dog, as just described, will press inward a catch consisting of a pin, y, arranged transversely in the bar I and impelled outward by a spring, as clearly illustrated in Fig. 4, and 011 passing this pin, and after the pin has been impelled outward by the said spring, it will engage with the pin and be precluded from upward movement.

The bar I is supported in bearings g, so-as to be capable of sliding longitudinally to and fro. It is furnished with an arm, h, which on the contact with it of one of two fingers, i, carried by a dial, J, common to both the timepieces A A, and preferably capable of being operated by either of them, is impelled inward, drawing the bar 1 with it, so as to withdraw it from under the block or dog B This inward movement of the bar I carries the hook Z past the pin y, and consequently the block or dog is permitted to move in either direction. When the block or dog leaves thebar I it falls to the bottom of the case 0, and an opening, j, with which it is provided, comes opposite the opening 0 in the said case, and thus remains during the time the door is desired to be unlocked, permitting the while the re traction of the bolt-work.

In order to render the block or dog again operative, it has to be raised into position to be supported by the rod D, whereupon it is ready once more to fulfill its functions. When the block or dog is thus raised a wedge or cam-like leg, is, forming part of it, comes in contact with a pin, Z, extending from an arm, m, erected on the bar I, and returns the latter into position to again support the said block or dog 011 its descent. As it resumes this position the head of a catch-lever, K, engages with a recess in it and secures it in position until the said lever is released by either of the fingers *5 coming in contact with its tail or other end and disengaging it from the bar prior to operating the said bar,as above described.

On the descent of the block or dog after the withdrawal of the bar I from under it, said block or dog passes a device consisting, in this example of my invention, of a bar, L, ar-

seams ranged in bearings a, aflixed to the front plate of v the mechanical time-pieces A A, so as to be free to slide across the path or line of travel of said block or dog, or out of the way of the same. It has its outer end so inclined that should it protrude in the way of the block or dog during the descent of such block or dog a pin, 0, on the latter will, in passing it, force it inward against the resistance of a spring, M, whereby, when not otherwise acted on, it is impelled outward.

P P designate shafts passing through slots pp, in the bar L, so that they will not interfere with its movements. Mounted on these shafts P P are cams Q Q, impinging on pins (1 (1, arranged on the bar L, and adapted once in every revolution to force the said bar inward against the resistance of the spring M. Preferably, either of said shafts P P, with their cams Q Q, may thus actuate the bar L independently of the other. The shafts P P are driven through gearing from the winding arbors or shafts R R of the mechanical timepieces A A. Hence the latter are the means of actuating the bar L in its inward movements. On these winding-arbors R R,.as at present shown, are pinions S S, engaging with gear-wheels T T on shafts U U, provided also with pinions V V, engaging with gear-wheels X X on the shaftsP P, the latter being thus rotated once during the entire number of revolutions of the winding-arbors R R. Mutilated geanwheels W W on the winding-arbors R R, engaging with corresponding wheels Y Y, serve as stops for the mechanism described when long teeth 1' r on the wheels W W come in contact with short recesses ss in the wheels Y Y.

B y suitably modifying the mechanism whereby motion is imparted from the winding-arbors R R to the barL the latter may be made to protrude at any condition of the mechanical time-pieces, or either of them. 7

Whenever, prior to the time when it is desirable to raise the block or dog, the bar L protrudes far enough across the path or line of travel of the same, the pin 0 therein will become engaged with the said bar, so that the block or dog is thereby precluded from being raised until either or both of the mechanical time-pieces is or are Wound, so as to cause either or both of the cams Q Q to draw the bar inward. Therefore this bar L precludes the time-lock from securing the bolt-work until after the proper winding of either or both the mechanical time-pieces.

In the example of my invention above set forth the block or dog constitutes the looking or dogging mechanism of the lock. My invention is not restricted to use with such locking or dogging mechanism, however, for I can employ it advantageously with looking or dogging mechanisms of various kinds.

What I claim as my invention, and desire to secure by Letters Patent, is-- 1. The combination, with a time-lock, of

means for precluding it from being locked Whenever its time mechanism is too much expended or run down to fulfill its functions, substantially as specified.

2. The combination, with a timelock. of a device for precluding a looking or dogging mechanism from being adjusted into a posi tion to fulfill its functions Whenever the time mechanism is too much run down to perform its duties, substantially as specified.

3. The combination, with a time-lock, of a bar adapted to protrude in the path of lock- .ing or dogging mechanism and a cam connected with the winding device of the timemechanism for Withdrawing said bar from the path of said looking or dogging mechanism, substantially as specified.

4. The combination, with a time-lock, of a bar adapted to protrude in the path of looking or dogging mechanism, a cam connected with the winding device of the time mechanism for movingit in one direction, and a spring for moving it in the other direction, substantially as specified.

5. The combination, with a time-lock, of a bar adapted to protrude in the path of looking or dogging mechanism, a cam mounted on a shaft connected by gear-wheels to the windin g-arbor of time mechanism for impelling it in one direction, and a spring for impelling it in the other direction, substantially as specified.

6. The combination, with a time-lock, of a bar adapted to protrude in the path of looking or dogging mechanism and to yield and permit the looking or dogging mechanism to pass it in one direction, but to preclude the passage of the looking or dogging mechanism in the other direction, substantially as specified.

OLIVER E. PILLARD.

\Vitnesses:

GHAs. A. NORTHEND, FRED. H. HUBBARD. 

